
package com.joysuch.wwyt.core.common.util;

import javax.servlet.http.HttpServletRequest;

public class HttpUtils {

    public static boolean isAjaxRequest(HttpServletRequest request) {
        return "application/json".equals(request.getContentType()) || request.getHeader("X-Requested-With") != null;
    }

    public static String getClientIp(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }

        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }
}
